<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 登陆表 -->
      <el-form ref="loginFormRef" :model="loginform" :rules="loginFormRule" label-width="0px" class="login_form">
          <!-- 用戶名 -->
        <el-form-item prop="username">
          <el-input v-model="loginform.username" prefix-icon="el-icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input type="password" v-model="loginform.password" prefix-icon="el-icon-lock"></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
export default {
    data(){
        return{
            //登录表单数据绑定
            loginform:{
                username:'admin',
                password:'123456'
            },
            //表单验证规则
            loginFormRule:{
                username:[
                    {required: true,message:"请输入登录名",trigger:"blur"},
                    {min:3,max:10,message:"长度在 3 到 10 个字符",trigger:"blur"}
                ],
                password:[
                    {required: true,message:"请输入登录密码",trigger:"blur"},
                    {min:6,max:15,message:"长度在 6 到 15 个字符",trigger:"blur"}
                ]
            }
        }
    },
    methods:{
        resetLoginForm(){
            this.$refs.loginFormRef.resetFields();
        },
        login(){
            this.$refs.loginFormRef.validate(async valid=>{
                if(!valid) return;
                const {data:res} =await this.$http.post('login',this.loginform)
                if(res.meta.status != 200 )
                    return this.$message.error(res.meta.msg);
                this.$message.success(res.meta.msg);

                window.sessionStorage.setItem('token',res.data.token);
                this.$router.push('/home');
            });
        }
    }

}
</script>
<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avatar_box {
  height: 130px;
  width: 130px;
  border: 1px solid #eee;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #fff;
  img {
    height: 100%;
    width: 100%;
    border-radius: 50%;
    background-color: #eee;
  }
}
.btns{
    display: flex;
    justify-content: flex-end;
}
.login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
</style>